<s>
Cốc	B-Application
Cốc	I-Application
browser	B-Application
(	O
;	O
meaning	O
"	O
knock	O
knock	O
"	O
and	O
previously	O
Cờ	B-Application
Rôm+	I-Application
;	O
)	O
is	O
a	O
freeware	B-License
web	B-Application
browser	I-Application
focused	O
on	O
the	O
Vietnamese	O
market	O
,	O
developed	O
by	O
Vietnamese	O
company	O
Cốc	B-Application
Cốc	I-Application
and	O
based	O
on	O
Chromium	B-Language
open	I-Language
source	I-Language
code	I-Language
.	O
</s>
<s>
Cốc	B-Application
Cốc	I-Application
is	O
available	O
for	O
Windows	O
,	O
Windows	O
Phone	O
,	O
Android	B-Application
,	O
and	O
macOS	B-Application
operating	O
systems	O
and	O
supports	O
both	O
English	O
and	O
Vietnamese	O
.	O
</s>
<s>
Cốc	B-Application
Cốc	I-Application
also	O
has	O
its	O
own	O
search	O
engine	O
service	O
.	O
</s>
<s>
The	O
first	O
version	O
of	O
the	O
browser	B-Application
was	O
presented	O
under	O
the	O
brandname	O
Cờ	B-Application
Rôm+	I-Application
on	O
4	O
December	O
2012	O
(	O
Cờ	O
Rôm	O
being	O
the	O
informal	O
Vietnamese	O
pronunciation	O
for	O
Chrome	B-Application
)	O
.	O
</s>
<s>
Two	O
months	O
after	O
the	O
official	O
release	O
,	O
the	O
number	O
of	O
Cốc	B-Application
Cốc	I-Application
users	O
in	O
Vietnam	O
surpassed	O
Opera	B-Application
and	O
later	O
Safari	B-Application
and	O
Internet	B-Application
Explorer	I-Application
.	O
</s>
<s>
On	O
2	O
April	O
2014	O
,	O
Cờ	B-Application
Rôm+	I-Application
was	O
officially	O
re-branded	O
as	O
the	O
Cốc	B-Application
Cốc	I-Application
browser	B-Application
to	O
unify	O
the	O
company	O
's	O
brands	O
under	O
that	O
name	O
:	O
Cốc	B-Application
Cốc	I-Application
Search	O
Engine	O
,	O
Cốc	B-Application
Cốc	I-Application
browser	B-Application
and	O
Nhà	O
Nhà	O
mobile	O
app	O
.	O
</s>
<s>
In	O
October	O
2017	O
,	O
Cốc	B-Application
Cốc	I-Application
reached	O
more	O
than	O
22million	O
users	O
and	O
ranked	O
as	O
the	O
second	O
most	O
popular	O
browser	B-Application
in	O
Vietnam	O
after	O
Google	B-Application
Chrome	I-Application
.	O
</s>
<s>
Cốc	B-Application
Cốc	I-Application
has	O
a	O
mechanism	O
to	O
perform	O
reverse	O
domain	O
name	O
resolution	O
,	O
allowing	O
the	O
bypassing	O
of	O
blocked	O
websites	O
(	O
including	O
Facebook	B-Application
)	O
on	O
DNS	O
.	O
</s>
<s>
This	O
feature	O
debuted	O
on	O
14	O
May	O
2013	O
,	O
in	O
the	O
first	O
official	O
release	O
of	O
the	O
browser	B-Application
.	O
</s>
<s>
Cốc	B-Application
Cốc	I-Application
is	O
equipped	O
with	O
a	O
system	O
that	O
automatically	O
adds	O
lingual	O
tone	O
to	O
Vietnamese	O
text	O
.	O
</s>
<s>
It	O
allows	O
the	O
user	O
to	O
enter	O
Vietnamese	O
text	O
without	O
the	O
need	O
for	O
applications	O
like	O
Unikey	B-Language
,	O
EVkey	O
and	O
Vietkey	O
.	O
</s>
<s>
When	O
users	O
type	O
any	O
text	O
without	O
tone	O
,	O
Cốc	B-Application
Cốc	I-Application
will	O
suggest	O
the	O
most	O
likely	O
variants	O
of	O
tone	O
arrangements	O
,	O
once	O
processed	O
on	O
the	O
Cốc	B-Application
Cốc	I-Application
server	O
.	O
</s>
<s>
Cốc	B-Application
Cốc	I-Application
incorporates	O
an	O
English-Vietnamese	O
dictionary	O
,	O
assisting	O
English	O
learners	O
or	O
international	O
newspaper	O
subscribers	O
from	O
elementary	O
to	O
the	O
advanced	O
level	O
.	O
</s>
<s>
Cốc	B-Application
Cốc	I-Application
is	O
able	O
to	O
find	O
media	O
content	O
(	O
audio	O
,	O
video	O
)	O
on	O
most	O
streaming	O
websites	O
and	O
save	O
it	O
to	O
the	O
computer	O
for	O
viewing	O
or	O
listening	O
offline	O
,	O
by	O
one	O
click	O
on	O
an	O
icon	O
on	O
the	O
toolbar	O
.	O
</s>
<s>
Except	O
for	O
several	O
premium	O
websites	O
,	O
all	O
popular	O
streaming	O
websites	O
,	O
for	O
example	O
,	O
YouTube	O
and	O
Dailymotion	O
,	O
are	O
downloadable	O
on	O
the	O
browser	B-Application
.	O
</s>
<s>
Unlike	O
Google	B-Application
Chrome	I-Application
,	O
which	O
removes	O
and	O
cancels	O
all	O
pending	O
downloads	O
when	O
the	O
browser	B-Application
is	O
closed	O
,	O
Cốc	B-Application
Cốc	I-Application
saves	O
and	O
resumes	O
partial	O
downloads	O
(	O
assuming	O
that	O
the	O
server	O
hosting	O
the	O
file	O
supports	O
this	O
feature	O
)	O
.	O
</s>
<s>
According	O
to	O
data	O
published	O
by	O
StatCounter	O
in	O
October	O
2021	O
,	O
use	O
of	O
Cốc	B-Application
Cốc	I-Application
surpassed	O
Firefox	B-Application
and	O
,	O
with	O
a	O
share	O
of	O
12.82	O
%	O
,	O
became	O
the	O
second	O
most	O
used	O
browser	B-Application
in	O
Vietnam	O
after	O
Google	B-Application
Chrome	I-Application
(	O
also	O
based	O
on	O
Chromium	B-Language
)	O
,	O
at	O
70.9	O
%	O
(	O
combined	O
at	O
74.88	O
%	O
)	O
.	O
</s>
<s>
Also	O
according	O
to	O
data	O
published	O
by	O
StatCounter	O
in	O
October	O
2021	O
,	O
Cốc	B-Application
Cốc	I-Application
had	O
overtaken	O
Internet	B-Application
Explorer	I-Application
and	O
Firefox	B-Application
to	O
become	O
one	O
of	O
the	O
top	O
browsers	B-Application
in	O
Vietnam	O
.	O
</s>
<s>
In	O
2021	O
,	O
the	O
ex-CEO	O
of	O
Cốc	B-Application
Cốc	I-Application
confessed	O
that	O
at	O
least	O
from	O
2017	O
,	O
the	O
company	O
was	O
engaged	O
in	O
selling	O
advertising	O
to	O
illegal	O
gambling	O
websites	O
and	O
other	O
activities	O
suspected	O
to	O
have	O
criminal	O
nature	O
.	O
</s>
